Charles lywhorf



niiet tatet Lener; Parma 1ra-97,576, dated December 7, 1869.

VENTILATOR.

`The Schedule referred to in theseI-ettere Patent and making part of the seme To all whom it lmay concern:

Be it known that 1 Qirnnnns F. WHORE, o f the city of St. Louis, in the county ot' St. Louis, and in the State of Missouri, have invented an Improved System of Heating and 'Ventilating Hot-Houses, Greenhouses, &c.; and do hereby declare that the following is a full, clear, and exact description thereof', reference being had to the annexed drawings, making --a part of this speciiication, in which like letters of reference refer to like paris, and in Which- Figure l represents a pexspectiveview.

Figure -2 is a longitudinal section.

Figure 3 is a transverse section.

Figure LLisa plan' view.

This invention is for the purpose of supplying, in winter, hot-houses, greenhouses, conservator-ies, 85e., with warm vaporized air, containing all the properties and ingredients of natura-1 air, for due nourishment and vigorous growth of the plants; and which is supplied to theln by a process of heating and ventilatimfwhereby the plants receive a continuous fresh current ofair, similar to that of summer. This I accomplish by the vfollowing apparatus:

First, for eliminating the cold air, and also the surplus oxygen which has been thrown ofi" by the plant,

' anV arrangement of a system of eduction-pipes'to the ventilatingstack, asffollow's, viz, two or more horizontal pipes or ducts, A B, united (if more than one) by` a cross-pipe, 0, leading to the Ventilating-stack E. The pipes may be 4laid beneath the iioor K, of the house, and contain several openings, a, b, c, d, die

-into them through' the latter. The ventilatingfstack E may be built of brick, and encloses the smoke-pipe D, of the heater or furnace H, which pipe runs verw-tcail'y up it until it reaches a point some distance abovethe topot the Ventilating-stack. The heat of the smoke-pipe, by raret'ying the air in the flue of ventilating-stack, causes theasceut ol all air introduced by the eduction or ventilating-pipes A, B, C, 85e., hereafter described.

Second, the air introduced into the house is heated and also vapor-ized and prepared for-the supplying of 'life and health to the plant by evoporating bodies of water in reservoirs I, near the heater H. The pipe or duct F introduces the vaporized air from the heater .or room in which the heater isplaced, into the house near the top of the latter, into the horizontal pipe or y duct G at said-place.. This pipe has several openings into the room, but those toward the extremities of the same, should be the largest, to secure a proper supply of the air at those parts ofthe house.

The operation ot' this arrangement is as follows:

l The heater or stove H being filled with fuel, and lighted, the outer air immediatelyenters,,and passing up along the surface of the heaters and over the waterreservoirs, saturates itself with `the vapor, passes on upward through thev duct F, into the pipe or duct G, into the house, when it begins to descend over and through the leaves ottheplants, supplying them with a continual current of fresh, pure, and healthy air. The descent ot' the vaporized air is the downward current caused by the ednotion or ventilating stack E, the rarefying action of the heated smoke-pipe D, of the furnace or` heater H within the stack-being, oi' course, the cause of the ventilating-draught carrying oli', with the descending air, all noxious gases thrown Voft' by the plants, Ste.

Advantages.

Plants, like animals, especially when reared in a house, require a constant renewal of healthy air, and as. the plant receives nine-tenths oi' its nourishment vfrom the air, that air should contain all the natural properties and constituents of the outer air, and should be continually renewed in a current offresh air properly tempered, and supplied with vapor, passing around them. This desideratum I believe to be secured by my plan, as above described. 1n the present inode oi` heating greenhouses, the heating-apparatus or furnace is situated in the house, and the heating is, by direct radiation therein, thus precluding all ventilation or change of air. This plan also dispenses with water-v ing, as the entering warm air may be fully saturated with water, itl necessary, thus keeping the earth perpetually moist, and flowers and vegetables may-he grown all the year round.

Having thus fully described my invention,

hat I claim therein as new, and desire to secure Witnesses:

J. F. OLMSTEAD, N. T. JUDD. 

